Dear Friends, 

i am using Altium Designer for fpga and embedded project on digilentspartan3E-500 board. 
I have created an FPGA project in Altium using open bus document containingthree device: 
1. TSK3000A 
2. WB_PRTIO_1 (for leds) 
3. WB_UART_V2_1 
Added a top level schematic sheet. Added constraint file to the projectcontaining correct fpga pin designators. Configured the TSK3000 memory sizeas 16K. The fpga project gets synthesized and bit stream is generatedwithout any problem. 
Next i created an embedded project and made it child of the TSK3000 cpu. 
Configured Aplication Memory as 0-8K as ROM and 8k-16K as ram. 
Adjusted the Stack size to 512. Heap size " " (nothing not even 0). 
Created main.c and software platform document. My software platformdocument contains: 
hardware rappers: 
1. WB_PRTIO_1 
2. WB_UART_V2_1 
and driver files: 
1. DRV_PRTIO_1 
2. DRV_UART_V2_1 

following is my main.c: 
------------------------------------------------- 
#include <stdio.h> 
#include <stdint.h> 
#include <drv_uart8.h> 
#include <drv_ioport.h> 
#include "hardware.h" 
#include "devices.h" 

uart8_t* uart; 
ioport_t* ioport; 

void main(void) 
{ 
int value=0; 
uart = uart8_open(DRV_UART8_1); //uart8_t* uart8_open(int id); 
uart8_set_baudrate(uart,19200); 
ioport = ioport_open(DRV_IOPORT_1); //ioport_t* ioport_open(const int id);
value = uart8_write(uart,"helloworld\n", 20); 
ioport_set_value(ioport, WB_PRTIO_1, 0xaa); 
ioport_set_value(ioport, WB_PRTIO_1, 0x55); 

while (1) 
{ 
//int uart8_putchar(uart8_t *restrict drv, int val); 
//uart8_putchar(uart, uart8_getchar(uart)); //int uart8_getchar(uart8_t*restrict drv); 
uart8_putchar(uart, 'U'); 

} 

} 
--------------------------------- 
I have attached pc com port with my boards serial port and running hyperterminal on the other end of the serial cable. 
Now the problem is: 
I can write to leds without any problem but i never see prints fromuart8_write(); function. 

I have following questions which I hope someone will come up with answers:
1. How to compute value of stack requirement? 
2. How to compute value for heap? 
3. What might be wrong with my design that i don't see message on theserial port? 
4. How can i configure my embedded design to re-direct printf output toUART? 

Regards.

	   
					
---------------------------------------		
Posted through http://www.FPGARelated.com

>Dear Friends, 
>
>i am using Altium Designer for fpga and embedded project on digilent
>spartan3E-500 board. 
>I have created an FPGA project in Altium using open bus documentcontaining
>three device: 
>1. TSK3000A 
>2. WB_PRTIO_1 (for leds) 
>3. WB_UART_V2_1 
>Added a top level schematic sheet. Added constraint file to the project
>containing correct fpga pin designators. Configured the TSK3000 memorysize
>as 16K. The fpga project gets synthesized and bit stream is generated
>without any problem. 
>Next i created an embedded project and made it child of the TSK3000 cpu. 
>Configured Aplication Memory as 0-8K as ROM and 8k-16K as ram. 
>Adjusted the Stack size to 512. Heap size " " (nothing not even 0). 
>Created main.c and software platform document. My software platform
>document contains: 
>hardware rappers: 
>1. WB_PRTIO_1 
>2. WB_UART_V2_1 
>and driver files: 
>1. DRV_PRTIO_1 
>2. DRV_UART_V2_1 
>
>following is my main.c: 
>------------------------------------------------- 
>#include <stdio.h> 
>#include <stdint.h> 
>#include <drv_uart8.h> 
>#include <drv_ioport.h> 
>#include "hardware.h" 
>#include "devices.h" 
>
>uart8_t* uart; 
>ioport_t* ioport; 
>
>void main(void) 
>{ 
>int value=0; 
>uart = uart8_open(DRV_UART8_1); //uart8_t* uart8_open(int id); 
>uart8_set_baudrate(uart,19200); 
>ioport = ioport_open(DRV_IOPORT_1); //ioport_t* ioport_open(const intid);
>
>value = uart8_write(uart,"helloworld\n", 20); 
>ioport_set_value(ioport, WB_PRTIO_1, 0xaa); 
>ioport_set_value(ioport, WB_PRTIO_1, 0x55); 
>
>while (1) 
>{ 
>//int uart8_putchar(uart8_t *restrict drv, int val); 
>//uart8_putchar(uart, uart8_getchar(uart)); //int uart8_getchar(uart8_t
>*restrict drv); 
>uart8_putchar(uart, 'U'); 
>
>} 
>
>} 
>--------------------------------- 
>I have attached pc com port with my boards serial port and running hyper
>terminal on the other end of the serial cable. 
>Now the problem is: 
>I can write to leds without any problem but i never see prints from
>uart8_write(); function. 
>
>I have following questions which I hope someone will come up withanswers:
>
>1. How to compute value of stack requirement? 
>2. How to compute value for heap? 
>3. What might be wrong with my design that i don't see message on the
>serial port? 
>4. How can i configure my embedded design to re-direct printf output to
>UART? 
>
>Regards.
>
>	   
>					
>---------------------------------------		
>Posted through http://www.FPGARelated.com
>

First of all your check if are opening the correct uart - 
>and driver files: 
>1. DRV_PRTIO_1 
>2. DRV_UART_V2_1 <<<<<<< 
>
>uart = uart8_open(DRV_UART8_1); //uart8_t* uart8_open(int id); 

they are different.

To redirect your printf to UART, go to software platform file. 
GO to Serial IO options - there is option to select your stdout and stdindevice - set to your uart device name.

the printf will be redirected to the uart now.

For your stack requirement - the .map file gives you a preliminary stackanalysis


Regards
Manish

	   
					
---------------------------------------		
Posted through http://www.FPGARelated.com